Out of the tragedy of Hurricane Harvey has come countless stories of everyday heroes. One of those heroes is "Mattress Mack," a Houston business owner who opened his two furniture stores to those affected by the storm.

"We sell home theater furniture that you watch TV in, they're sleeping on that. They're sleeping on recliners, sleeping on sofas and love seats. We have sleeper sofas, they pulled them out and slept on that," Jim McIngvale told NPR's "Morning Edition." "They're sleeping on hundreds of mattresses throughout the store. They're sleeping on the couches — wherever they can find a place that's comfortable, and God bless 'em."

When the waters started to rise, McIngvale sent trucks to rescue those stranded. In total, 200 people were brought to the store by truck and another 200 showed up in their cars. McIngvale is providing shelter to all 400.

Happy 65th birthday, Mattress Mack!(Photo: Family photos)

When asked why he felt the need to open up his stores, McIngvale got choked up.

"My people were drowning," he said. "These are my people. I can't leave. I can't leave them in a house full of 5 feet of water."

McIngvale hasn't been to his own home and his wife is currently volunteering at the town's tennis club. Neither has seen their house since last Sunday. But McIngvale isn't worried about what he'll find when he does return home.

"We haven't been home but, whatever it is, we're still better off than most people. We'll move on," he said.

Michael Boyd passes his son Skylar over to a rescue worker as they are evacuated on an airboat from their apartment complex after it was inundated with water following Hurricane Harvey on Aug. 30, 2017 in Houston. Scott Olson, Getty Images

Houston Police SWAT officer Daryl Hudeck carries Catherine Pham and her 13-month-old son Aiden after rescuing them from their home surrounded by floodwaters from Tropical Storm Harvey on Aug. 27, 2017, in Houston. The remnants of Hurricane Harvey sent devastating floods pouring into Houston Sunday as rising water chased thousands of people to rooftops or higher ground. David J. Phillip, AP

Sgt. Chad Watts, of the Louisiana Department of Wildlife and Fisheries, holds Madelyn Nguyen, 2, after he rescued her and her family by boat from floodwaters of Tropical Storm Harvey Aug. 28, 2017. Gerald Herbert, AP

Texas Army National Guard members Sergio Esquivel, left, and Ernest Barmore carry 81-year-old Ramona Bennett after she and other residents were rescued from their Pine Forest Village neighborhood due to high water from Hurricane Harvey Aug. 29, 2017, in Houston. Erich Schlegel, Getty Images